Vast amounts of NASA data is publicly available. For instance, the data from planetary science missions is available through the Planetary Data System (http://p

Vast amounts of NASA data is publicly available. For instance, the data from planetary science missions is available through the Planetary Data System (http://pds.nasa.gov http://pds.nasa.gov). There are a number of other similar services available for other types of data. They are listed at NASA's Data Portal (https://data.nasa.gov/ https://data.nasa.gov/).